ESO English Support wrote:Log in to your account on https://account.elderscrollsonline.com
Sign the new Terms of Service agreement.
[...]
Please try the following:
Reboot router/modem
Connect your computer via cable (not wireless).
[...]
In addition, you may want to check that your router has not blocked access through the following ports:
• TCP / UDP Ports 24100 through 24131
• TCP / UDP Ports 24500 through 24507
• TCP / UDP Ports 49100 through 54000
[...]
Also, try a clean boot to disable background programs that could potentially be blocking the connection ...
It's now 6 am. I have been trying to log in for roughly 4 hours on an off. I try every 30-45 mins and always get a time out on the login attempt.
You guys are a disgrace. I have just cancelled my account. I have had enough of your ***. Good luck with your unsupported buggy game!
301 is a server end issue. nothing you can do will help it.
The only fix is a server restart.
This means you can not play until the scheduled server restart day.
If you want proof of this try longing into EU if you are having 301 on US and vice versa.
/edit
If you do try to test it you will need to re-download the whole game again because ESO-EU and ESO-US are so dramatically different that they require their own clients to run
/edit_off
ps: support who try to tell you to trouble shoot ports and reboot modems are simply trying to buy time till the next restart